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Winner of an election
Smriti's String
String Queries
The Password
Khalibali
SP - Palindrome Family
SP - K<sup>th</sup> largest and smallest
Same Count After Sorting
Odd Couples
Hello
POW
Print K largest element
Index of Left
K-Sum
A Boolean Matrix Problem
Sum to Primes
Student Record
Check the Brackets
K Sum
Matrix - Destination
Reverse a linked list
Node at a given index in linked list
Remove duplicates from an unsorted linked list
Insertion Sort
Check for BST
Right View of Binary Tree
K distance from root
Mirror Tree
Two Mirror Trees
Height of Binary Tree
Kth from End of Linked List
Middle of a Linked List
Left View of Binary Tree
Transform to Sum Tree
Remove Duplicates from a Sorted Linked List
Level Order in spiral form
Reverse Level Order Traversal
DFS of Graph
BFS of graph
Identical Trees
Square Root
Nodes without a Sibling
Insertion at doubly linked list
Lowest Common Ancestor in a BST
Largest subarray of 0's and 1's
Level Order Line by Line
BST Keys in a Range
Leaves at Same Level or Not
Third largest element
Expression Tree
Minimum distance in an Array
Three way partitioning
Level order traversal
Inorder Successor in BST
More than n/k Occurrences
Reverse Using Stack
Find length of Loop
Maximum Pairwise Computed Value
Height of Spiral Tree
Sum of Leaf Nodes
Tilt of Binary Tree
Delete Mid of a Stack
The New Line
For Loop- primeCheck
Start Coding - Java
Two Dimensional World
Delete Array
Get min at pop
Repetitive Printing - Python
If conditional statement- Python
Intro to Lists - Python
Set in Python - I
Max and Second Max
Searching in arranged array
Sorting
Sort Using MergeSort
Rightmost different bit
Check K-th Bit
GP Term
Mean And Median of Array
Minimum adjacent difference in a circular array
Frequencies in a Limited Array
Equilibrium Point
Array Leaders
Count 1's in binary array
Floor in a Sorted Array
Minimum Number in a sorted rotated array
Print adjacency list
Reversing the columns of a Matrix
Exchange matrix columns
Naive Pattern Search
Linear Probing in Hashing
Anagram
Winner of an election
String Rotated by 2 Places
Most Frequent Character
Reverse Words
Non Repeating Character
Parenthesis Checker
Minimum Cost of ropes
Union-Find
The BFS traversal
The BFS traversal
Single Appearance
First Repeating Element
Check Equal Arrays
Positive Negative Pair
Search Query for Strings
Missing in Array
Product array puzzle
Intersection of Arrays with Distinct
Adding One
Max Value Permutation
Missing And Repeating
Subarrays with given sum
Non-Repeating Element
Pairs of equals Sum
Count the elements
Maximum Gap
Find Kth Rotation
Professor and Parties
Maximize sum after K negations
Equal Point in Sorted Array
Common in 3 Sorted Arrays
Sorted and Rotated Minimum
Sum of elements between k1'th and k2'th smallest elements
Search in a Row-Column sorted matrix
Move All Zeroes to End
String Duplicates Removal
Minimize the sum of product
Chocolate Distribution Problem
Count the triplets
Pairs with difference k
Permutations in array
Finding Number
Drive the car
King's War
Next Greater Even Number
Fascinating Number
Bitonic Point
Single Number
Count increasing Subarrays
Alternate Positive Negative
Kth distance
Addition of submatrix
Stuffs Division
Sort in specific order
Form largest number from digits
Rahul lucky-unlucky
Sorting Employees
Nearest multiple of 10
Toppers Of Class
Sum of two numbers represented as arrays
Facing the sun
Convert array into Zig-Zag fashion
Two Sum - Pair with Given Sum
Equal point in a string of brackets
Sort Unsorted Subarray
Find all pairs with a given sum
Number of occurrence
Does array represent Heap
Find missing in second array
Longest Common Prefix of Strings
Largest Fibonacci Subsequence
First Repeated Character
Segregate 0s and 1s
Maximum number of zeroes
Three Great Candidates
Digits in a set
At Least K Occurrences
Element with left side smaller and right side greater
Sort the pile of cards
Four Elements
Missing ranges of numbers
Total count
Smallest greater elements in whole array
Pair with given sum in a sorted array
Element that appears once where every element occurs twice
Nearest Perfect Square
Minimum number of Coins
Ticket sellers
Incomplete Array
Interchanging the rows of a Matrix
Penalty scoring
SP - Special Subsequences
K-Sum in a Linked List
The Game of Digits
Pick the one
Stable Pairs
Students in limelight
Check if array is sorted and rotated clockwise
Get the Shadow
The Game of Digits
Sorting distance
Maximum number evaluation
Adventure Land
Rotate a Linked List
Sort a linked list of 0s, 1s and 2s
Add Number Linked Lists
Merge 2 sorted linked list in reverse order
Detect Loop in linked list
Count BST nodes that lie in a given range
Binary Tree from Inorder and Postorder
Bottom View of Binary Tree
Delete without head pointer
Diameter of a Binary Tree
Merge two sorted linked lists
Add all greater values to every node in a BST
Sum Tree
Construct Binary Tree from Parent Array
Connect Nodes of Levels
Flattening a Linked List
Diagonal Tree Traversal
Tree Boundary Traversal
Directed Graph Cycle
Undirected Graph Cycle
LCA in Binary Tree
Maximum difference between node and its ancestor
The Celebrity Problem
Largest subarray with 0 sum
Topological sort
Vertical Tree Traversal
Merge K sorted linked lists
Find the number of islands
Serialize and deserialize a binary tree
Gas Station
Linked List to Binary Tree
Check if subtree
Extreme nodes in alternate order
Remove loop in Linked List
Dijkstra Algorithm
Minimum Spanning Tree
Sorted subsequence of size 3
Multiply two strings
Maximum Difference
Palindrome Linked List
Strongly Connected
Bipartite Graph
Closest in BST
Merge two BST 's
Count distinct elements in every window
Merge k Sorted Arrays
Root to leaf paths sum
Print Nodes having K leaves
Find triplets with zero sum
Top View of Binary Tree
Find Common Nodes in two BSTs
Ancestors in Binary Tree
Binary Tree to CDLL
Root to Leaf Paths
Populate Inorder Successor for all nodes
K Sum Paths
Foldable Binary Tree
Leftmost and rightmost nodes of binary tree
Construct Tree from Inorder & Preorder
Count the nodes at distance K from leaf
Vertical sum
Isomorphic Trees
Maximum path sum from any node
Leaves to DLL
Children Sum in a Binary Tree
Construct Tree from Preorder Traversal
Check if two Nodes are Cousins
Convert Level Order Traversal to BST
Count Number of SubTrees having given Sum
Vertical Width of a Binary Tree
Swap Kth nodes from ends
Add two numbers represented by Linked List
Mother Vertex
Reverse array in groups
Smallest Positive Missing
Maximum occured integer
Wave Array
Possible Words From Phone Digits
Rearrange Array Alternately
Rearrange an array with O(1) extra space
Stock buy and sell
Check if array is sorted and rotated
Kadane's Algorithm
Majority Element
Count Inversions
Union of 2 Sorted Arrays
Indexes of Subarray Sum
Count the number of possible triangles
Merge Without Extra Space
Closer to sort
Possible paths between 2 vertices
Level of Nodes
Make Matrix Beautiful
Boolean Matrix
Spirally traversing a matrix
Search in a sorted Matrix
Distance of nearest cell having 1
Unit Area of largest region of 1's
Subarray with 0 sum
Subarrays with equal 1s and 0s
Longest Consecutive Subsequence
Stock span problem
Next Greater Element
Infix to Postfix
K Sized Subarray Maximum
Kth largest element
Kth smallest element
K Most occurring elements
Job Sequencing Problem
Minimum Platforms
Largest number in K swaps
M-Coloring Problem
Ways to Reach the n'th Stair
Minimum number of jumps
Sum of all substrings of a number
Longest Increasing Subsequence
Longest Common Subsequence
0 - 1 Knapsack Problem
K nearest Points
Find median in a row wise sorted matrix
Find the Average
Range Min Max Queries
Equal Sum Partition
Sort according to an Array
Allocate Minimum Pages
Preorder to BST
X Total Shapes
Zero Sum Subarrays
Find whether path exist
Shortest Common Supersequence
Rotten Oranges
Most frequent word in an array of strings
Count only Repeated
Renaming Cities
Maximize The Cut Segments
Word Break
Sort 0s, 1s and 2s
How many pizzas ?
Pascal Triangle
Maximum Index
Large Factorial
Maximize Number of 1's
Sum of Middle elements of two sorted arrays
Single Among Doubles in a Sorted
Count Occurences of Anagrams
Pythagorean Triplet
Pair Sum Closest to 0
Search in Rotated Sorted Array
Print Binary Tree levels in sorted order
Form the Largest Number
Water Collection
Maximum Product Subarray
Remove minimum elements
Row with max 1s
Max Sum without Adjacents
k largest elements
Longest Common Substring
Smallest distinct window
Longest Palindrome in a String
Product Pair
K-th element of two Arrays
Arranging the array
Possible groups
Triplets with Smaller Sum
Rod Cutting
Fill array with 1's
Longest Palindromic Subsequence
Minimum sum
Not a subset sum
First and Last Occurrences
Smaller on Left
Permutations of a String
3 Divisors
Max Sum Increasing Subsequence
Coin Change (Count Ways)
Coin Change (Minimum Coins)
Perfect Sum Problem
Find distinct elements
nCr
Min Coin
Digit multiplier
Knight Walk
Number of paths in a matrix with k coins
Jumping Numbers
Preorder Traversal and BST
Kth Largest in a Stream
Two odd Occuring
Height Using Parent Array
The Sale Season
Online Geeks Classes
The Shikaari's Array
Balanced Pairs - Beta
Maximum Simultaneous Difference
Santa and Gift
Linked List Group Reverse
Binary Tree to DLL
Clone List with Next and Random
Min distance between two given nodes of a Binary Tree
Longest Palindromic Substring in Linear Time
Nodes at given distance in binary tree
Fixing Two nodes of a BST
Max Path Sum 2 Special Nodes
Number of Turns in Binary Tree
Penalty scoring
BST-Tripling
Trapping Rain Water
Max Circular Subarray Sum
Histogram Max Rectangular Area
Max of min for every window size
Find median in a stream
Merge Without Extra Space
Ugly Numbers
Count Smaller elements
Edit Distance
Minimum sum partition
Longest valid Parentheses
Longest Zig-Zag Sub Sequence
Maximum sum Rectangle
The Newtonian Tree
Find minimum s-t cut in a flow network
Rotate Array
Occurrence sum
Transmutation
In new line
Game of Function
Find Length of Linked List
Count Leaves in Binary Tree
Postorder Traversal
Print number pattern
Linked List Insertion At End
Minimum element in BST
Identical Linked Lists
Triplet Family
Alternates in an Array
Count Odd and Even
Start Coding - Python
Space Seperated - Python
Concatenating Strings - Python
Who has the majority?
Strongest Neighbour
Array insert at end
If conditional statement - C
Self referential structures in C
Start coding - C
string input and iteration
getchar and putchar - C
Reversing an Array
Number is sparse or not
Array Search
Adding two matrices
Binary String
C++ Hello World
Mega Sale
Searching in an Array
Elements before which no element is bigger
Sort Array II
Maximum product of two numbers
Segregate Even and Odd numbers
Learning Output
Fighting the darkness
Sum of alternate product
Reverse sub array
Immediate Smaller Element
Sum of distinct elements
Remove repeated digits in a given number
First 1 in a Sorted Binary Array
Max and Min Product from 2 Arrays
Last index of One
One odd Occuring
Array Subset
Positive and negative elements
GCD of Array
Find the fine
LCM And GCD
Automorphic Number
Series AP
Half N by M
Make a Distinct Digit Array
Jumble datatype
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